Photographs released by the aid group showed her cradling a small child as she comforted victims at a treatment centre for cholera, which has claimed almost 2,200 lives since an outbreak began in October.

She said: "I've really enjoyed meeting this community. They are so full of joy. We are so fortunate in America and we are responsible for helping those less fortunate. Samaritan's Purse is still here doing the tough work."